Side by side

Formex Essence ThirtyNinevsGrand Seiko SLGB001

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Formex Essence ThirtyNine

The Formex Essence ThirtyNine is praised for its impressive build quality and value, featuring a patented case suspension system for comfort and protection. It houses a COSC-certified Sellita SW200-1 movement with a 38-hour power reserve and a tool-free strap quick-release system. A minor inconvenience noted is the specific closing order of the clasp. On balance, reviewers rate the Formex Essence ThirtyNine highly for its comfortable wearability and excellent value at its price point.

From video reviewers

The case suspension system enhances comfort and the COSC-certified movement is a strong feature. The bracelet exhibits noticeable rattle. Reviewers disagreed on the ideal case size, with some preferring the 39mm and others the 41mm.

Grand Seiko SLGB001

The Grand Seiko SLGB001 is a limited edition platinum watch in the Evolution 9 collection, featuring a 37mm case and the new Calibre 9RB2 Spring Drive U.F.A. movement, rated to ±20 seconds per year. It has an "Ice Forest" dial with a deep blue hue and a silver seconds hand, but notably lacks lume. A criticism is the absence of a micro-adjustment clasp on its leather strap. Overall, reviewers highlight the watch's advanced movement and distinctive dial as key features.

At a glance

11 of 29 specs differ
Diameter
Essence ThirtyNine39mm
SLGB00137mm
Power Reserve
Essence ThirtyNine41h
SLGB00172h
Water Resistance
Essence ThirtyNine100m
SLGB001100m
MSRP
Essence ThirtyNine$2,390
SLGB001$39,000

Full specifications

Case

4 specs
Diameter
39mm
37mm
Thickness
10mm
11.4mm
Lug-to-Lug
45mm
44.3mm
Material
Stainless Steel
Platinum

Crystal & Dial

3 specs
AR Coating
Yes
Dial Color
Space Ghost
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW200-1
9RB2
Type
Automatic
Spring Drive
Power Reserve
41h
72h

Pricing

1 specs
MSRP
$2,390
$39,000
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